EP1133418B1 - Verfahren zum erkennen der schwere eines fahrzeugzusammenstosses - Google Patents
Verfahren zum erkennen der schwere eines fahrzeugzusammenstosses Download PDFInfo
- Publication number
- EP1133418B1 EP1133418B1 EP99958107A EP99958107A EP1133418B1 EP 1133418 B1 EP1133418 B1 EP 1133418B1 EP 99958107 A EP99958107 A EP 99958107A EP 99958107 A EP99958107 A EP 99958107A EP 1133418 B1 EP1133418 B1 EP 1133418B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crash
- sensors
- crash sensors
- neural network
- acceleration sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
- B60R21/0133—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value by integrating the amplitude of the input signal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R2021/01034—Controlling a plurality of restraint devices
Definitions
- the invention relates to a method to detect the severity of a vehicle collision, in which the output signal of an acceleration sensor prepared and a neural network, which controls a trip unit for an occupant protection device.
- a method is known from US 5,583,771 A. This will be the output signal a single acceleration sensor over a defined period of time stored in terms of its course and the waveform a number of information such as amplitude, velocity, etc. determined.
- These Information is input to the neural network as input information, That decides whether a single airbag is ignited.
- the known method has a plurality of disadvantages. For one thing it is Requires the course of the crash signal over a given period of time save and, of course, only then analyze it. The usage a single accelerometer does not allow all possible Vehicle collisions with sufficient certainty regarding their severity to recognize.
- the reason for this is a normally existing directional dependence of acceleration sensors.
- a side crash then usually can not or can detect a frontal crash at least not detected with the same accuracy.
- Such a single Acceleration sensor is usually arranged centrally in the vehicle. conditioned Due to the vehicle structure, the deceleration takes place at the location of the acceleration sensor only delayed and in its course completely different from the course, like For example, it takes place at the impact of an obstacle. This usually leads to serious problems, the severity of the vehicle collision actually to recognize with sufficient precision. Also there is sometimes the problem to recognize the crash in time.
- the invention is based on the object, a method of the aforementioned Kind of creating a much better statement about a vehicle collision supplies.
- crash sensors offer the possibility of this Sensors not (only) centrally, but also on site to arrange at the places that be affected in a vehicle collision preferred.
- a head-on collision there are places in the front area, for example on the engine mount, for a rear-end accident places in the area of the rear triangle.
- a side crash can preferably be detected by sensors located in the side area of the vehicle are arranged. Due to the multitude of crash sensors, for example, a total of eight or more, not just a statement on the severity, but also on the course of the vehicle collision win.
- the decentralized crash sensors and the central acceleration sensor provide a physically equivalent output at the same time. This is determined by a trigger signal, for example by one of the crash sensors or the acceleration sensor is then output, if its output signal exceeds a predetermined threshold. In a vehicle collision this will be the sensor that is at the impact of an object on next. This is most severely affected by all sensors and cause the other sensors to do so at the same time to deliver respective output signal. This time can be for example Detection of the impact position of the accident opponent 5 ms after the detection of a Vehicle collision be selected.
- crash sensors deliver a physical size that is the same quality as has the size supplied by the accelerometer. It can work out as well to act on acceleration values.
- the crash sensors are then, for example also built in the same way as the accelerometer and work according to the same physical principle.
- a further improvement over the severity and course of a vehicle collision can then win if the output signal of the crash sensors and the acceleration sensor over time.
- the first integration results in a statement about the speed or the relative speed at the respective location of the sensor.
- the NN neural network
- the NN is not constantly polled as in US 5,583,771 A, but it is triggered as in a conventional crash detection algorithm first in a crash, for example, characterized in that a filtered acceleration value exceeds a certain threshold.
- some characteristic parameters of the acceleration profiles of several sensors are transferred to the NN as y values, but not their entire time course.
- the characteristic values of the acceleration profiles are obtained on the basis of time window and / or temporal double integrals of the accelerations and / or various mathematical combinations of the different signal characteristics.
- the number of inputs required in the NN is thus no longer a few tens to hundreds but only a small number (less than 10).
- a reliable one Statement about the crash severity is not yet possible, the NN over another, compared to the first trigger threshold increased and a heavier crash corresponding trigger threshold triggered and questioned again become.
- a modularity of the algorithm is made possible so that several units (several airbags, belt tensioners, etc.) of the Crash severity adapted to react.
- the NN is called only after triggering and not constantly and besides because working with much more prepared data, is also the needed Effort already with in today's conventional control units and processors existing computing capacity feasible. Also, by the stronger Preparation of the signal data Results from crash simulations as sample data to be used for training.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
- Automotive Seat Belt Assembly (AREA)
Description
Claims (7)
- Verfahren zum Erkennen der Schwere eines Fahrzeugzusammenstosses, bei dem das Ausgangssignal eines Beschleunigungssensors aufbereitet und einem neuronalen Netz zugeführt wird, das eine Auslöseeinheit für eine Insassenschutz-Einrichtung steuert, wobei zum Erkennen auch des Verlaufs des Fahrzeugzusammenstosses insgesamt acht oder mehr Crash-Sensoren vorgesehen sind, die eine dem Ausgangssignal des Beschleunigungssensors gleiche oder ähnliche physikalische Größe liefern, dass diese Ausgangssignale zu einem definierten Zeitpunkt gleichzeitig als Eingangssignale in das neuronale Netz eingegeben werden, und dass durch die Auslöseeinheit mehrere Insassenschutzeinrichtungen entsprechend der Schwere und des Verlaufs des Fahrzeugzusammenstosses gesteuert werden.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Crash-Sensoren eine Information über die jeweiligen relativen Geschwindigkeiten der Sensor-Orte liefern.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Crash-Sensoren eine Information über die jeweilige relative Verschiebung der Sensor-Orte liefern.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Crash-Sensoren ebenfalls Beschleunigungssensoren sind.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Ausgangssignale der Crash-Sensoren und des Beschleunigungssensors über die Zeit integriert werden.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Ausgangssignale der Crash-Sensoren doppelt über die Zeit integriert werden.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die aus den Ausgangssignalen des Beschleunigungssensors und der Crash-Sensoren gebildeten physikalischen Größen zu aufeinanderfolgenden definierten Zeitpunkten als Eingangssignale in das neuronale Netz eingegeben werden.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19854380A DE19854380A1 (de) | 1998-11-25 | 1998-11-25 | Verfahren zum Erkennen der Schwere eines Fahrzeugzusammenstoßes |
DE19854380 | 1998-11-25 | ||
PCT/EP1999/008990 WO2000030903A1 (de) | 1998-11-25 | 1999-11-22 | Verfahren zum erkennen der schwere eines fahrzeugzusammenstosses |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1133418A1 EP1133418A1 (de) | 2001-09-19 |
EP1133418B1 true EP1133418B1 (de) | 2005-10-05 |
Family
ID=7888977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99958107A Expired - Lifetime EP1133418B1 (de) | 1998-11-25 | 1999-11-22 | Verfahren zum erkennen der schwere eines fahrzeugzusammenstosses |
Country Status (6)
Country | Link |
---|---|
US (1) | US6600984B1 (de) |
EP (1) | EP1133418B1 (de) |
JP (1) | JP2002530239A (de) |
DE (2) | DE19854380A1 (de) |
ES (1) | ES2247840T3 (de) |
WO (1) | WO2000030903A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007027649B4 (de) * | 2007-06-15 | 2015-10-01 | Robert Bosch Gmbh | Verfahren und Steuergerät zur Ansteuerung von Personenschutzmitteln sowie Computerprogramm und Computerprogrammprodukt |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6782316B2 (en) * | 1995-06-07 | 2004-08-24 | Automotive Technologies International, Inc. | Apparatus and method for adjusting a steering wheel |
US20070135982A1 (en) | 1995-06-07 | 2007-06-14 | Automotive Technologies International, Inc. | Methods for Sensing Weight of an Occupying Item in a Vehicular Seat |
DE10035505A1 (de) | 2000-07-21 | 2002-01-31 | Bayerische Motoren Werke Ag | Verfahren zum Erkennen der Schwere eines Fahrzeugzusammenstoßes |
JP3695351B2 (ja) * | 2001-05-14 | 2005-09-14 | トヨタ自動車株式会社 | 乗員保護装置の起動装置 |
DE10134331C1 (de) * | 2001-07-14 | 2002-10-10 | Bosch Gmbh Robert | Verfahren und Vorrichtung bei der Ansteuerung der Auslösung von passiven Sicherheitssystemen sowie Anwenendung davon |
EP1678012B1 (de) * | 2003-10-17 | 2007-12-19 | Volkswagen Aktiengesellschaft | Verfahren zum herstellen eines kraftfahrzeuges |
JP4449409B2 (ja) * | 2003-10-27 | 2010-04-14 | 日産自動車株式会社 | 車両用乗員保護装置 |
DE102004031557B4 (de) * | 2004-06-29 | 2016-12-22 | Conti Temic Microelectronic Gmbh | Verfahren und Crash-Sensor für eine Vorrichtung zur insassengefährdungsrelevanten Aktivierung von Insassen-Schutzeinrichtungen in einem Kraftfahrzeug bei Crashfällen |
DE102005017218A1 (de) * | 2005-04-14 | 2006-10-19 | Conti Temic Microelectronic Gmbh | Verfahren und Vorrichtung zur Steuerung einer Sicherheitseinrichtung eines Fahrzeugs |
DE112006002648B4 (de) * | 2005-10-14 | 2010-11-25 | Continental Automotive Systems US, Inc. (n. d. Gesetzen des Staates Delaware), Auburn Hills | Mischen von Sensoren zum Erzeugen alternativer Sensorcharakteristiken |
DE102007048883A1 (de) * | 2007-10-11 | 2009-04-16 | Robert Bosch Gmbh | Verfahren und Steuergerät zur Aufprallerkennung für ein Fahrzeug |
DE102008003081B4 (de) | 2008-01-03 | 2018-05-03 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Crashklassifikation für ein Fahrzeugsicherheitssystem |
DE102008005527A1 (de) | 2008-01-22 | 2009-07-23 | Robert Bosch Gmbh | Verfahren zur Erzeugung von Datensätzen und korrespondierendes Verfahren zur Crashklassifikation |
US20110015804A1 (en) * | 2009-07-17 | 2011-01-20 | Delphi Technologies, Inc. | Vehicle Threshold Based Synchronous Communication System and Method |
JP2022136710A (ja) | 2021-03-08 | 2022-09-21 | 株式会社リコー | トナー残量検出装置及び画像形成装置 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3803426A1 (de) * | 1988-02-05 | 1989-08-17 | Audi Ag | Verfahren zur wirksamschaltung eines sicherheitssystems |
US5673365A (en) * | 1991-06-12 | 1997-09-30 | Microchip Technology Incorporated | Fuzzy microcontroller for complex nonlinear signal recognition |
US5202831A (en) * | 1991-07-09 | 1993-04-13 | Trw Vehicle Safety Systems Inc. | Method and apparatus for controlling an occupant restraint system using real time vector analysis |
US5684701A (en) * | 1995-06-07 | 1997-11-04 | Automotive Technologies International, Inc. | Method and apparatus for sensing a vehicle crash |
US5282134A (en) * | 1991-08-19 | 1994-01-25 | Automotive Systems Laboratory, Inc. | Slant transform/signal space crash discriminator |
US5377108A (en) * | 1992-04-28 | 1994-12-27 | Takata Corporation | Method for predicting impact and an impact prediction system for realizing the same by using neural networks |
US5742916A (en) * | 1992-12-23 | 1998-04-21 | Siemens Aktiengesellschaft | Process and circuit for controlling the control unit of a system for protecting vehicle occupants |
US5484166A (en) * | 1994-07-22 | 1996-01-16 | Trw Vehicle Safety Systems Inc. | Method and apparatus for providing a deployment signal for a vehicle occupant restraint device during a side impact crash |
US5583771A (en) | 1994-08-04 | 1996-12-10 | Delco Electronics Corp. | Method and apparatus for distinguishing between deployment events and non-deployment events in an SIR system |
KR970001747B1 (ko) * | 1994-10-31 | 1997-02-15 | 대우전자 주식회사 | 3방향(3축) 감속신호와 가변 기준치를 이용한 자동차용 에어백 제어장치 |
DE19520608A1 (de) | 1995-06-06 | 1996-12-12 | Siemens Ag | Steueranordnung zur Auslösung eines Rückhaltemittels in einem Fahrzeug bei einem Seitenaufprall |
DE19724101A1 (de) * | 1997-06-07 | 1998-12-10 | Bayerische Motoren Werke Ag | Verfahren zur bedarfsgerechten Steuerung von Insassen-Sicherheitseinrichtungen |
-
1998
- 1998-11-25 DE DE19854380A patent/DE19854380A1/de not_active Withdrawn
-
1999
- 1999-11-22 US US09/856,698 patent/US6600984B1/en not_active Expired - Lifetime
- 1999-11-22 WO PCT/EP1999/008990 patent/WO2000030903A1/de active IP Right Grant
- 1999-11-22 JP JP2000583749A patent/JP2002530239A/ja active Pending
- 1999-11-22 ES ES99958107T patent/ES2247840T3/es not_active Expired - Lifetime
- 1999-11-22 DE DE59912627T patent/DE59912627D1/de not_active Expired - Lifetime
- 1999-11-22 EP EP99958107A patent/EP1133418B1/de not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007027649B4 (de) * | 2007-06-15 | 2015-10-01 | Robert Bosch Gmbh | Verfahren und Steuergerät zur Ansteuerung von Personenschutzmitteln sowie Computerprogramm und Computerprogrammprodukt |
Also Published As
Publication number | Publication date |
---|---|
JP2002530239A (ja) | 2002-09-17 |
ES2247840T3 (es) | 2006-03-01 |
DE59912627D1 (de) | 2005-11-10 |
US6600984B1 (en) | 2003-07-29 |
DE19854380A1 (de) | 2000-05-31 |
EP1133418A1 (de) | 2001-09-19 |
WO2000030903A1 (de) | 2000-06-02 |
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